Sony HCD-GX450 / MHC-GX450 Service Manual ▷ View online
49
HCD-GX450
• IC601 LC876996A-52S4-E (SYSTEM CONTROLLER) (PANEL BOARD)
Pin No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
I/O
O
O
I
O
I
O
I
I
I
I
I
I
O
—
I
O
—
I
I
I
I
I
I
I
I
I
I
I
I
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
—
O
O
O
O
Pin Name
O-MP3 CS
O-MP3 LP MOTER
I-MP3 ACK SOL-B
O-MP3 REQ SOL-A
I-SCOR
O-MP3 RESET
I-BU1924 DATA
I-BU1924 CLK
I-VOLUME-IN1
I-VOLUME-IN2
RESET
I-XT1
I-XT2
VSS1
CF1
CF2
VDD1
I-PROTECT
WFR/HP/MIC-IN
I-CD ENCODER
I-CD OPEN/CLOSE
I-TAPE A START
I-TAPE B START
I-STREAM/VACS
I-KEY 3
I-KEY 2
I-KEY 1
I-SIRDS-IN
I-AC CUT
G13
G12
G11
G10
G9
G8
G7
G6
G5
G4
G3
G2
G1
S1
S2
S3
VDD3
S4
S5
S6
S7/METER-SW1
Description
CS output to CD Digital Processor
LP output to CD Digital Processor and Motor signal output
ACK input from CD Digital Processor and Motor signal input
REQ output to CD Digital Processor and Motor signal output
CD Scor input
RESET output to CD Digital Processor
Data input(Not used)
Clock input(Not used)
Volume signal input from the encoder
Volume signal input from the encoder
Reset input
Connection for input a crystal resonator
Connection for input a crystal resonator
Ground
Connection for input a ceramic resonator
Connection for input a ceramic resonator
Power supply
Power amplifier circuit protection signal input
SubWoofer or Headphone detection signal input
Signal input from the CD encoder
CD tray open switch signal input
TAPE A switches signal input
TAPE B switches signal input
Stream/Vacs signal input
Function key input
Function key input
Function key input
Data input from the remote contorol receiver
Power down signal input
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
Power supply
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
50
HCD-GX450
Pin No
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
I/O
—
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
—
O
O
O
O
O
O
O
O
O
O
I
O
O
O
O
O
—
—
O
O
O
O
O
I
O
O
I
O
Pin Name
-VPP
S8/METER-SW2
S9/METER-SW3
S10/SW1
S11/SW2
S12/SW3
S13/SW4
S14/SW5
S15/SW6
S16/SW7
S17/SW8
S18/SW9
S19/SW10
S20
S21
I-SPEC/MODE/METER
I-TUNED-IN
I-STEREO-IN
I-ASM-IN
I-REEL-A-IN
I-REEL-B-IN
VDD4
I-CD Num Senser
O-POWER-RELAY
O-SYSTEM-MUTE
O-POWER-LED
STREAM-LED6 SOLB
STREAM-LED5 SOLA
STREAM-LED4 MOTOR
STREAM-LED3 MP3-STB
STREAM-LED2
STREAM-LED1
I-LC72121 DI
O-LC72121 CE
O-LC72121/BU2099FV DO
O-LC72121/BU2099FV CLK
O-BU2099FV LCH
O-BD3401 CLK
VSS2
VDD2
O-BD3401 DATA
O-XTCN
O-XRES(RESET)
O-XLT(CD-LAT)
O-CD-DATA
I-SENS
O-CD-CLK
O-MP3-DO
I-MP3-DI
O-MP3-CLK
Description
Power supply (-)
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
METER swich input
Tuning a frequency signal input
Stereo tuning signal input
ASM signal input
A deck photo sensor signal input
B deck photo sensor signal input
Power supply
Table address sensor swich signal input
POWER RELAY control output
System muting signal output
POWER LED control signal output
Illumination LED control signal output
Illumination LED control signal output
Illumination LED control signal output
Illumination LED control signal output
Illumination LED control signal output
Illumination LED control signal output
Data input from Tuner
Chip select output to Tuner
Data input from Tuner and SP Driver
Clock output to Tuner and SP Driver
LCH output to SP Driver
Clock output to Sound Processor
Ground
Power supply
Data output toSound Processor
CD xtcn signal output
CD reset signal output
CD xlt signal output
CD data output
CD sens input
CD clk output
Clock output to CD Digital Processor
Data input from CD Digital Processor
Clock output to CD Digital Processor
SECTION 6
EXPLODED VIEWS
51
HCD-GX450
NOTE:
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
have some differences from the original one.
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
The components identified by mark
0
or
dotted line with mark
0
are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0
sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifié.
le numéro spécifié.
•
The mechanical parts with no reference number
in the exploded views are not supplied.
in the exploded views are not supplied.
•
Abbreviation
CND
CND
: Canadian model
6-1. MAIN SECTION
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
CD mechanism deck section-1
#1
#1
#2
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
a
a
#2
3
2
12
1
1
1
1
5
front panel
section
section
Main board section
4
not
supplied
7
8
9
10
not
supplied
not
supplied
not
supplied
not
supplied
#2
not
supplied
not
supplied
b
b
PT902
1
3-363-099-31 SCREW (CASE 3 TP2)
2
4-245-183-61 COVER (SIDE-L) (US)
2
4-245-183-71 COVER (SIDE-L) (CND)
3
4-252-196-21 DOOR, CD
4
3-038-018-01 EMBLEM, SONY
5
4-244-849-61 COVER (TOP) (US)
5
4-244-849-71 COVER (TOP) (CND)
7
1-763-117-13 FAN, DC
8
1-769-940-11 WIRE (FLAT TYPE) (11 CORE)
9
1-693-631-12 TUNER (FM/AM)
10
1-400-285-11 F-BEAD, E2515 MRT
12
4-245-184-61 COVER (SIDE-R) (US)
12
4-245-184-71 COVER (SIDE-R) (CND)
0 PT902
1-443-614-11 TRANS ASSY, SUB
#1
7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
#2
7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
52
HCD-GX450
6-2. FRONT PANEL SECTION
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
not
supplied
supplied
69
68
a
53
51
53
a
52
77
78
59
61
63
62
54
54
54
54
64
66
67
65
76
59
74
75
74
73
not supplied
not supplied
not supplied
not supplied
54
57
58
56
72
55
71
70
60
51
4-252-202-01 DOOR (B), CASS
52
4-252-201-01 DOOR (A), CASS
53
4-238-631-01 TAPE SPRING
54
4-951-620-01 SCREW (2.6X8), +BVTP
55
4-252-207-11 BUTTON, FF/ALBUM+
56
4-252-208-11 BUTTON, FR/ALBUM-
57
4-252-214-01 KNOB, VOLUME
58
X-4956-295-1 RING ASSY, KNOB
59
4-224-104-41 DAMPER
60
4-252-198-01 WINDOW, DISPLAY
61
4-231-824-01 CAM (A), HEART
62
4-231-836-01 SPRING (HEART CAM-A)
63
4-252-195-21 PANEL, FRONT (US)
63
4-252-195-31 PANEL, FRONT (CND)
64
1-769-975-11 WIRE (FLAT TYPE) (13 CORE)
65
1-773-048-11 WIRE (FLAT TYPE) (17 CORE)
66
4-231-841-01 SPRING (HEART CAM-B)
67
4-231-825-01 CAM (B), HEART
68
4-225-252-01 CUSHION (FOOT)
69
1-796-485-51 DECK, MECHANICAL (CWM43FF-05)
70
4-252-200-01 BUTTON COVER
71
4-252-206-01 BUTTON, STOP
72
4-252-205-01 BUTTON, PLAY
73
2-657-155-01 BELT (BR)
74
4-235-777-01 BELT (FR)
75
4-243-609-01 BELT (AF)
76
1-773-282-11 WIRE (FLAT TYPE)(29 CORE)
77
4-252-221-01 SPRING (A), CASS DOOR
78
4-252-222-01 SPRING (B), CASS DOOR
Ver. 1.3
Click on the first or last page to see other HCD-GX450 / MHC-GX450 service manuals if exist.